lineGetCallBarringCaps

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Use the lineGetCallBarringCaps function to retrieve the barring modes and line capability classes supported by the radio hardware. The actual set of usable modes and classes may be smaller depending on network capabilities and the provisioning of a particular subscriber.

LONG WINAPI lineGetCallBarringCaps(
  HLINE hLine,
  LPDWORD lpdwModes,
  LPDWORD lpdwClasses
);

Parameters

  • hLine
    The line device handle. The line device handle must have been previously obtained by a call to lineOpen with the proper TAPI device ID specified and a device-specific extension version successfully negotiated with lineNegotiateExtVersion. For more information about lineNegotiateExtVersion and lineOpen, see the TAPI Functions API Reference topics on MSDN.
  • lpdwModes
    Points to a bit field DWORD that enumerates all supported barring modes.
  • lpdwClasses
    Points to a bit field DWORD that enumerates the set of supported line capability types (e.g., voice, data, etc.). See the Barring Modes constants for all possible values.

Return Values

Returns zero if the function completes successfully, or a negative error number if an error occurs. The following are possible return values.

LINEERR_RESOURCEUNAVAIL
LINEERR_INVALLINEHANDLE
LINEERR_STRUCTURETOOSMALL
LINEERR_INVALPOINTER
LINEERR_UNINITIALIZED
LINEERR_NOMEM
LINEERR_OPERATIONUNAVAIL
LINEERR_OPERATIONFAILED

Remarks

This function is synchronous. No LINE_REPLY message is sent.

Requirements

Pocket PC: Pocket PC 2002 and later.
Smartphone: Smartphone 2002 and later.
OS Versions: Windows CE 3.0 and later.
Header: Extapi.h.
Library: Cellcore.lib.

See Also

Extended TAPI Functions | Barring Modes

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